Liquid coater

Abstract

A liquid coater which includes a mist feed tube ( 5 ) for feeding oil mist into an airtight container ( 2 ), an air hose ( 10 ) for feeding air into the airtight container ( 2 ) and a mist conveyor pipe ( 11 ) for conveying the oil mist pressurized by air inside the airtight container ( 2 ) to the outside of the container. Therefore, droplets and large mist particles can be trapped inside the container from the mist feed tube ( 5 ), and the mist can be conveyed at a high speed. The liquid coater has excellent applicability. The mist feed tube ( 5 ) has a double tube structure comprising an air tube ( 7 ) in which air flows, and an oil tube ( 6 ) which extends in the air tube ( 7 ) and in which the oil flows. The distal end of the oil tube ( 6 ) is positioned more inward than the distal end of the air tube ( 7 ), so that the oil mist can be fed by a simple construction.

What is claimed is:  
     
       1. A cutting method, comprising: 
       attaching a liquid coater to an oil feeder of a machine tool,  
       supplying mists toward a cutting edge; and  
       cutting an object to be processed,  
       wherein the liquid coater comprises:  
       a mist feed outlet for feeding mists into a container;  
       a gas feed outlet for feeding gas into the container, which is provided separately from the mist feed outlet;  
       a gas feed passage for feeding gas into the gas feed outlet, the gas feed passage being provided with an adjusting device for accelerating the mists and regulating a conveying speed at which the mists are conveyed; and  
       a mist conveying passage for conveying mists at the conveying speed that has been regulated, by the gas inside the container to the outside of the container,  
       wherein liquid for generating mists is collected in the container, the liquid flows into a liquid pump connected to the container, and the liquid discharged from the liquid pump goes through the mist feed outlet and is fed as mists into the container.  
     
     
       2. The cutting method according to claim  1 , wherein a discharge part with a narrowed tip is connected to an end of the mist conveying passage. 
     
     
       3. The cutting method according to claim  1 , wherein the mist feed outlet has a double tube structure comprising a gas tube in which gas flows and a liquid tube in which liquid flows that extends inside the gas tube, and an end of the liquid tube is positioned inward compared to an end of the gas tube. 
     
     
       4. A cutting method, comprising: 
       attaching a liquid coater to an oil feeder of a machine tool;  
       supplying mists toward a cutting edge; and  
       cutting an object to be processed,  
       wherein the liquid coater generates mists from liquid in a container and discharges the mists to the outside of the container,  
       wherein the liquid coater comprises:  
       a lower nozzle having a gas injection port in the liquid;  
       an upper nozzle having a gas injection port in the upper part of the container whereby gas injected through the upper nozzle flows together with the mist inside the container; and  
       a mist conveying passage provided in the upper part of the container, the mist conveying passage conveying mists in the container to the outside of the container,  
       and the mists are generated by injecting gas from the gas injection port of the lower nozzle.  
     
     
       5. The cutting method according to claim  4 , wherein a discharge part with a narrowed tip is connected to an end of the mist conveying passage. 
     
     
       6. The cutting method according to claim  4 , wherein the gas injection port of the upper nozzle and the gas injection port of the lower nozzle are arranged so that gas is injected toward an inner-wall side face of the container from both the gas injection ports.